Title :
Analysis of curvilinear dipoles and their arrays with finite reflectors
Author :
Jun-Hong Wang ; Lang Jen
Author_Institution :
Inst. of EM Theory & Microwave Tech., Southwest Jiaotong Univ., Sichuan, China
Abstract :
Although straight wire dipoles are widely used in antenna engineering, their gains are lower than curvilinear dipoles. For this reason, many researchers studied curvilinear dipoles and their arrays, but the front-to-back ratio of the curvilinear dipoles without reflectors are very high. So professor F.M. Landstorfer put a circular reflector behind the curvilinear dipoles to diminish the backward radiation, and obtained some experimental results. But so far, the theoretical results of curvilinear dipoles and their arrays with finite reflectors have not been seen. In this paper, an integral-differential equation for arbitrarily shaped wire antennas with finite reflectors is derived, the properties of Gaussian shaped dipoles and their arrays are analyzed by solving this equation by the moment method.<>
Keywords :
antenna theory; dipole antenna arrays; geometrical theory of diffraction; integro-differential equations; method of moments; reflector antenna feeds; wire antennas; Gaussian shaped dipoles; UTD; arbitrarily shaped wire antennas; arrays; backward radiation; circular reflector; curvilinear dipoles; finite reflectors; front-to-back ratio; integral-differential equation; moment method; Antenna theory; Current distribution; Diffraction; Dipole antennas; Gaussian processes; Green function; Integral equations; Microwave antenna arrays; Reflector antennas; Wire;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1994. AP-S. Digest
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-2009-3
DOI :
10.1109/APS.1994.407919